Problem with the api's library(int id, int when=0)

[anonymous]

I'm using the api xmlrpc for trac. I managed to see the list of tickets that were created. However, I can not use the method ticket.changeLog(int id, int When = 0). I have tried various ways to retrieve the values ​​of this method, but the following error is shown: "Ljava.lang.Object, can not be cast to java.util.Map". I've talked to some people about this issue and they told me that it's possibly a bug with the api's library. I would appreciate if someone would help me.

Best regards!

[Olemis Lang]

Replying to anonymous:

[...]

However, I can not use the method ticket.changeLog(int id, int When = 0).

[...]

the following error is shown: "Ljava.lang.Object, can not be cast to java.util.Map".

It's obvious you should be using some Java client libraries to get this done . Please mention which one and provide sample Java code reproducing this failure so that I can take a look into this and determine whether this is a problem with your code or RPC client library (i.e. invalid ticket) or the RPC API (let's fix it) .

[...]

Thanks for your interest in the plugin . :)

[armin]

Just got the same issue as the initial reporter of this issue.

Exception in thread "main" java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to java.util.Map
	at org.apache.xmlrpc.common.TypeConverterFactoryImpl$2.convert(TypeConverterFactoryImpl.java:164)
	at org.lustin.trac.xmlprc.TrackerDynamicProxy$1.invoke(TrackerDynamicProxy.java:128)
	at com.sun.proxy.$Proxy1.changeLog(Unknown Source)
	at Tests.TracXMLRpcTest.<init>(TracXMLRpcTest.java:64)

Just doing a basic query :

Ticket ticket = (Ticket) tdp.newInstance(Ticket.class);
System.out.println(ticket.changeLog(2,0));

All other methods like querying, creating and updating tickets work like a charm.

I'm using followng libraries :

Library	Version
xmlrpc-client	3.1.3
xmlrpc-common	3.1.3
ws-commons-util	1.0.2
org.lustin.trac_xml	1.1.2

Any other information I should provide ?

[Olemis Lang]

Replying to armin:

Just got the same issue as the initial reporter of this issue.

[...]

Any other information I should provide ?

Thanks for the information . I'll take a look into this .

[Olemis Lang]

This is what I get from the Python console

>>> from xmlrpclib import ServerProxy
>>> sp = ServerProxy("http://localhost:8082/trac_trunk/rpc")
>>> sp.ticket.get(1)
[1, <DateTime '20140128T03:12:34' at 181c098>, <DateTime '20140220T19:20:53' at 182ab90>, {'status': 'closed', 'changetime': <DateTime '20140220T19:20:53' at 182abd8>, 'description': 'd', 'reporter': 'anonymous', 'cc': '', 'type': 'defect', 'milestone': 'milestone2', '_ts': '1392924053536984', 'component': 'component1', 'summary': 's', 'priority': 'major', 'owner': 'somebody', 'version': '2.0', 'time': <DateTime '20140128T03:12:34' at 182ac20>, 'keywords': '', 'resolution': 'fixed'}]
>>> sp.ticket.changeLog(1, 0)
[[<DateTime '20140128T03:12:45' at 182ac68>, 'anonymous', 'comment', '1', '', 1], [<DateTime '20140128T03:12:45' at 182acf8>, 'anonymous', 'resolution', '', 'fixed', 1], [<DateTime '20140128T03:12:45' at 182ad88>, 'anonymous', 'status', 'new', 'closed', 1], [<DateTime '20140220T19:20:53' at 182add0>, 'murphy', 'comment', '2', '', 1], [<DateTime '20140220T19:20:53' at 182ae60>, 'murphy', 'milestone', '', 'milestone2', 1], [<DateTime '20140220T19:20:53' at 182aef0>, 'murphy', 'version', '', '2.0', 1]]

Then I wrote attached demo​ in Java only using Apache XML-RPC lib and it works as expected. These are the results I get.

+ Change
|    Jan 28, 2014 3:12:45 AM
|    by anonymous
|    permanent
|    field: comment
|    from: 1
|    to: 
+ Change
|    Jan 28, 2014 3:12:45 AM
|    by anonymous
|    permanent
|    field: resolution
|    from: 
|    to: fixed
+ Change
|    Jan 28, 2014 3:12:45 AM
|    by anonymous
|    permanent
|    field: status
|    from: new
|    to: closed
+ Change
|    Feb 20, 2014 7:20:53 PM
|    by murphy
|    permanent
|    field: comment
|    from: 2
|    to: 
+ Change
|    Feb 20, 2014 7:20:53 PM
|    by murphy
|    permanent
|    field: milestone
|    from: 
|    to: milestone2
+ Change
|    Feb 20, 2014 7:20:53 PM
|    by murphy
|    permanent
|    field: version
|    from: 
|    to: 2.0

Therefore there's nothing wrong with the server side API, afaict.

p.s. In sample code Trac RPC URL and ticket ID are retrieved from a global environment variable. This is my configuration:

$ dpkg -l libxmlrpc3* libws-commons-util-java | grep -v "^|"
Desired=Unknown/Install/Remove/Purge/Hold
+++-====================================================================-========================================-============-==============================================================================
ii  libws-commons-util-java                                              1.0.1-7                                  all          Common utilities from the Apache Web Services Project
ii  libxmlrpc3-client-java                                               3.1.3-5                                  all          XML-RPC implementation in Java (client side)
ii  libxmlrpc3-common-java                                               3.1.3-5                                  all          XML-RPC implementation in Java
ii  libxmlrpc3-java-doc                                                  3.1.3-5                                  all          XML-RPC implementation in Java (API documentation)

[Olemis Lang]

Trac XML-RPC sample code (Java)